/** 
  * 样式来自 hover.css
  * 具体参考: https://github.com/IanLunn/Hover
  */

/* Radial Out */
.hvr-radial-out {
  display: inline-block;
  vertical-align: middle;
  transform: perspective(1px) translateZ(0);
  box-shadow: 0 0 1px rgba(0, 0, 0, 0);
  position: relative;
  overflow: hidden;
  background: transparent;
  transition-property: color;
  transition-duration: 0.7s;
}
.hvr-radial-out:before {
  content: '';
  position: absolute;
  z-index: -1;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--main-color);
  border-radius: 100%;
  transform: scale(0);
  transition-property: transform;
  transition-duration: 0.7s;
  transition-timing-function: ease-out;
}
.hvr-radial-out:hover,
.hvr-radial-out:focus,
.hvr-radial-out:active {
  color: white;
}
.hvr-radial-out:hover:before,
.hvr-radial-out:focus:before,
.hvr-radial-out:active:before {
  -webkit-transform: scale(2);
  transform: scale(2);
}
